Warning: The install command is a part of the legacy v1 style of cabal usage.

Please switch to using either the new project style and the new-install
command or the legacy v1-install alias as new-style projects will become the
default in the next version of cabal-install. Please file a bug if you cannot
replicate a working v1- use case with the new-style commands.

For more information, see: https://wiki.haskell.org/Cabal/NewBuild

Resolving dependencies...
Starting     integer-logarithms-1.0.3
Starting     hashable-1.2.7.0
Starting     parser-combinators-1.0.2
Starting     primitive-0.6.4.0
Building     integer-logarithms-1.0.3
Building     parser-combinators-1.0.2
Building     primitive-0.6.4.0
Building     hashable-1.2.7.0
Completed    integer-logarithms-1.0.3
Completed    parser-combinators-1.0.2
Completed    hashable-1.2.7.0
Starting     case-insensitive-1.2.0.11
Building     case-insensitive-1.2.0.11
Completed    case-insensitive-1.2.0.11
Completed    primitive-0.6.4.0
Starting     scientific-0.3.6.2
Building     scientific-0.3.6.2
Completed    scientific-0.3.6.2
Starting     megaparsec-7.0.4
Building     megaparsec-7.0.4
Completed    megaparsec-7.0.4
Downloading  versions-3.5.1
Downloaded   versions-3.5.1
Starting     versions-3.5.1
Building     versions-3.5.1
Completed    versions-3.5.1